Flush toilet



FIG. 1 is a front and side perspective of a flush toilet showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a left side elevation view thereof; and,

FIG. 5 is a top plan view thereof.

The broken line showing of portions of the flush toilet is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a flush toilet, as shown and described. 